protected virtual ValueOrProceed <AssemblyFromStrategy> LoadFromDefaultContext(IPluginLoadContext pluginLoadContext, AssemblyName assemblyName)
{
try
{
var assembly = Default.LoadFromAssemblyName(assemblyName);
if (assembly != null)
{
return(ValueOrProceed <AssemblyFromStrategy> .FromValue(AssemblyFromStrategy.NotReleasable(assembly), false));
}
}
catch (FileNotFoundException) { } // This can happen if the plugin uses a newer version of a package referenced in the host
var hostAssembly = this.pluginDependencyContext.HostDependencies.FirstOrDefault(h => h.DependencyName.Name == assemblyName.Name);
if (hostAssembly != null && !hostAssembly.AllowDowngrade)
{
if (!!hostAssembly.AllowDowngrade)
{
throw new PrisePluginException($"Plugin<{typeof(T)}> Assembly reference {assemblyName.Name} with version {assemblyName.Version} was requested but not found in the host. The version from the host is {hostAssembly.DependencyName.Version}. Possible version mismatch. Please downgrade your plugin.");
}
this.logger.VersionMismatch(assemblyName, hostAssembly.DependencyName);
}
return(ValueOrProceed <AssemblyFromStrategy> .Proceed());
}
protected virtual ValueOrProceed <Assembly> LoadFromRemote(IPluginLoadContext pluginLoadContext, AssemblyName assemblyName)
{
var assemblyFileName = $"{assemblyName.Name}.dll";
if (File.Exists(Path.Combine(pluginLoadContext.PluginAssemblyPath, assemblyFileName)))
{
return(LoadDependencyFromLocalDisk(pluginLoadContext, assemblyFileName));
}
return(ValueOrProceed <Assembly> .Proceed());
}
protected virtual ValueOrProceed <Assembly> LoadDependencyFromLocalDisk(IPluginLoadContext pluginLoadContext, string assemblyFileName)
{
var dependency = LoadFileFromLocalDisk(pluginLoadContext.PluginAssemblyPath, assemblyFileName);
if (dependency == null)
{
return(ValueOrProceed <Assembly> .Proceed());
}
return(ValueOrProceed <Assembly> .FromValue(Assembly.Load(ToByteArray(dependency)), false));
}
protected virtual ValueOrProceed <IntPtr> LoadUnmanagedFromDefault(IPluginLoadContext pluginLoadContext, string unmanagedDllName)
{
var resolution = base.LoadUnmanagedDll(unmanagedDllName);
if (resolution == default(IntPtr))
{
return(ValueOrProceed <IntPtr> .Proceed());
}
return(ValueOrProceed <IntPtr> .FromValue(resolution, false));
}
protected override ValueOrProceed <Assembly> LoadFromRemote(IPluginLoadContext pluginLoadContext, AssemblyName assemblyName)
{
var networkAssembly = LoadDependencyFromNetwork(assemblyName);
if (networkAssembly != null)
{
return(ValueOrProceed <Assembly> .FromValue(networkAssembly, false));
}
return(ValueOrProceed <Assembly> .Proceed());
}
protected virtual ValueOrProceed <Assembly> LoadFromDefaultContext(IPluginLoadContext pluginLoadContext, AssemblyName assemblyName)
{
try
{
var assembly = Default.LoadFromAssemblyName(assemblyName);
if (assembly != null)
{
return(ValueOrProceed <Assembly> .FromValue(assembly, false));
}
}
catch (FileNotFoundException) { }
return(ValueOrProceed <Assembly> .Proceed());
}
protected virtual ValueOrProceed <Assembly> LoadFromDependencyContext(IPluginLoadContext pluginLoadContext, AssemblyName assemblyName)
{
if (IsResourceAssembly(assemblyName))
{
foreach (var resourceDependency in this.pluginDependencyContext.PluginResourceDependencies)
{
var resourcePath = Path.Combine(resourceDependency.Path, assemblyName.CultureName, assemblyName.Name + ".dll");
if (File.Exists(resourcePath))
{
return(ValueOrProceed <Assembly> .FromValue(LoadFromAssemblyPath(resourcePath), false));
}
}
// Do not proceed probing
return(ValueOrProceed <Assembly> .FromValue(null, false));
}
var pluginDependency = this.pluginDependencyContext.PluginDependencies.FirstOrDefault(d => d.DependencyNameWithoutExtension == assemblyName.Name);
if (pluginDependency != null)
{
var dependencyPath = this.dependencyPathProvider.GetDependencyPath();
if (String.IsNullOrEmpty(dependencyPath))
{
dependencyPath = pluginLoadContext.PluginAssemblyPath;
}
var probingPaths = this.probingPathsProvider.GetProbingPaths();
var dependency = this.pluginDependencyResolver.ResolvePluginDependencyToPath(dependencyPath, probingPaths, pluginDependency);
if (dependency != null)
{
return(ValueOrProceed <Assembly> .FromValue(LoadFromStream(dependency), false));
}
}
var localFile = Path.Combine(this.dependencyPathProvider.GetDependencyPath(), assemblyName.Name + ".dll");
if (File.Exists(localFile))
{
return(ValueOrProceed <Assembly> .FromValue(LoadFromAssemblyPath(localFile), false));
}
return(ValueOrProceed <Assembly> .Proceed());
}
protected override ValueOrProceed <Assembly> LoadFromDependencyContext(IPluginLoadContext pluginLoadContext, AssemblyName assemblyName)
{
if (IsResourceAssembly(assemblyName))
{
foreach (var resourceDependency in this.pluginDependencyContext.PluginResourceDependencies)
{
var resourceNetworkPathToAssembly = Path.Combine(this.baseUrl, Path.Combine(resourceDependency.Path, assemblyName.CultureName, $"{assemblyName.Name}.dll"));
var resourceNetworkAssembly = LoadDependencyFromNetwork(resourceNetworkPathToAssembly);
if (resourceNetworkAssembly != null)
{
return(ValueOrProceed <Assembly> .FromValue(resourceNetworkAssembly, false));
}
}
// Do not proceed probing
return(ValueOrProceed <Assembly> .FromValue(null, false));
}
var pluginDependency = this.pluginDependencyContext.PluginDependencies.FirstOrDefault(d => d.DependencyNameWithoutExtension == assemblyName.Name);
if (pluginDependency != null)
{
var dependencyPath = this.dependencyPathProvider.GetDependencyPath();
var probingPaths = this.probingPathsProvider.GetProbingPaths();
var resolvedNetworkAssembly = this.pluginDependencyResolver.ResolvePluginDependencyToPath(dependencyPath, probingPaths, pluginDependency);
if (resolvedNetworkAssembly != null)
{
return(ValueOrProceed <Assembly> .FromValue(LoadFromStream(resolvedNetworkAssembly), false));
}
}
var networkPathToAssembly = $"{baseUrl}/{Path.Combine(this.dependencyPathProvider.GetDependencyPath(), assemblyName.Name)}.dll";
var networkAssembly = LoadDependencyFromNetwork(networkPathToAssembly);
if (networkAssembly != null)
{
return(ValueOrProceed <Assembly> .FromValue(networkAssembly, false));
}
return(ValueOrProceed <Assembly> .Proceed());
}
protected virtual ValueOrProceed <Assembly> LoadFromDefaultContext(IPluginLoadContext pluginLoadContext, AssemblyName assemblyName)
{
try
{
var assembly = Default.LoadFromAssemblyName(assemblyName);
if (assembly != null)
{
return(ValueOrProceed <Assembly> .FromValue(assembly, false));
}
}
catch (FileNotFoundException) { } // This can happen if the plugin uses a newer version of a package referenced in the host
var hostAssembly = this.pluginDependencyContext.HostDependencies.FirstOrDefault(h => h.DependencyName.Name == assemblyName.Name);
if (hostAssembly != null)
{
this.logger.VersionMismatch(assemblyName, hostAssembly.DependencyName);
}
return(ValueOrProceed <Assembly> .Proceed());
}